Total Workers Affected
67
Across all WARN notices
Employer · WARN Act history · Professional & Technical Services
Charles River Laboratories
67 workers across 5 WARN notices, primarily in MD - recorded in the current PlainLayoffs dataset.
- 67
- Workers cut
- 5
- WARN notices
- 1
- State
- 13
- Avg / notice
Charles River Laboratories has 5 recorded WARN filings affecting 67 workers
According to WARN Act filings submitted to state workforce agencies, Charles River Laboratories has 5 recorded filings covering 67 workers across 1 state, primarily MD, the 3,729th-largest recorded WARN footprint among 6,916 tracked employers. WARN only covers mass layoffs at employers with 100+ employees, so this is a floor on the employer's actual workforce changes.
The verdict
Charles River Laboratories put 67 workers on WARN notice across 5 filings - the 3,729th-largest WARN footprint of 6,916 tracked employers.
- #3,729
- of 6,916 employers by workers affected
- Top 54%
- larger than 46% of tracked employers
- 5
- Recorded WARN filings
- 1
- state affected, led by MD
Where Charles River Laboratories Falls Among Tracked Employers
6,916 employers with a WARN filing, bucketed by total workers affected
Number of Notices
5
Recorded WARN Act filings
Latest Event Date
Feb 2026
Most recent filing
Not all layoffs appear in WARN data, see our methodology for the federal + state coverage thresholds.
Reported Layoff Scale (by Workers Affected) 30.0%
67 workers across recorded WARN events, a raw count, not adjusted for the employer's total headcount.
WARN Notice History
2026
Facility Closure
Anne Arundel County, MD · Professional & Technical Services
Effective: Mar 23, 2026
20
workers
Filed Feb 2, 2026
2025
Facility Closure
Frederick, MD · Professional & Technical Services
Effective: Mar 28, 2025
13
workers
Filed Apr 2, 2025
Facility Closure
Frederick, MD · Professional & Technical Services
Effective: Mar 28, 2025
7
workers
Filed Jan 29, 2025
2024
Mass Layoff
Frederick, MD · Professional & Technical Services
Effective: Sep 30, 2024
13
workers
Filed Aug 2, 2024
Facility Closure
Frederick, MD · Professional & Technical Services
Effective: May 13, 2024
14
workers
Filed Mar 14, 2024
How Charles River Laboratories compares in Professional & Technical Services
| # | Employer | Workers cut | Notices | Lead state |
|---|---|---|---|---|
| 1 | 12,127 | 17 | CA | |
| 2 | Cisco Systems | 9,221 | 4 | CA |
| 3 | Salesforce | 7,406 | 4 | CA |
| 4 | STARTEK | 1,275 | 4 | VA |
| 5 | Alorica | 915 | 4 | VA |
| 6 | Charter Communications | 889 | 8 | WI |
| 7 | Intel Corporation | 865 | 6 | CA |
| 8 | Oracle America | 815 | 11 | CA |
| 9 | Charles River Laboratories (this page) | 67 | 5 | MD |
What this means for MD workers
Charles River Laboratories has 5 recorded WARN filings covering 67 workers, most recently on Feb 2, 2026.
- If you are affected, file for unemployment and contact your state's rapid-response program inside the WARN Act's 60-day notice window. What to do after a layoff
- Check whether the required notice pay was provided, the WARN Act can entitle workers to up to 60 days of pay when notice is skipped. Estimate WARN pay
- See recorded WARN notices in MD, where Charles River Laboratories's filings were reported. MD layoffs
WARN Act filings only capture layoffs of 50+ workers at sites of 100+ employees, so smaller reductions, contractor non-renewals, and voluntary separations are not shown here.
Reading the Charles River Laboratories WARN Record
Charles River Laboratories has 5 WARN Act filings in this dataset, covering 67 workers between Mar 14, 2024 and Feb 2, 2026. As with any WARN count, the true figure runs somewhat higher (why). By total workers affected, Charles River Laboratories ranks #191 of 438 tracked employers in MD. Among the 8 other Professional & Technical Services employers with recorded WARN filings, the median is 1,095 affected workers -- Charles River Laboratories's 67 sits well below that group's typical scale. Every recorded filing was reported to MD's workforce agency, in the Professional & Technical Services sector -- a single-state footprint, unlike the multi-state pattern common among larger employers.
Averaging 13 workers per notice, Charles River Laboratories's filings fall into a pattern that suggests targeted team or department cuts that still crossed the WARN reporting threshold. The 5 notices on file represent distinct events, each triggering a 60-day advance warning obligation that fed into state rapid-response systems.
Workers on MD-based Charles River Laboratories notices should contact the MD workforce agency directly, response teams, severance negotiation guidance, and TAA (Trade Adjustment Assistance) screening move fastest in the days immediately following a notice. See what to do after a layoff for the full benefits timeline. This record reflects filed notices only; subsequent hiring, rescinded closures, or facility reopenings are not tracked by WARN disclosures.
Frequently Asked Questions
Is Charles River Laboratories laying off workers? ▼
Charles River Laboratories has filed 5 WARN Act notices affecting 67 workers across 1 state. The most recent notice was filed on Feb 2, 2026.
How many people has Charles River Laboratories laid off? ▼
According to WARN Act filings, Charles River Laboratories has affected 67 workers total, averaging 13 workers per notice.
What states has Charles River Laboratories had layoffs in? ▼
Charles River Laboratories has filed WARN notices in 1 state: MD.
What is a WARN Act notice? ▼
The Worker Adjustment and Retraining Notification (WARN) Act requires employers with 100+ employees to provide 60 days advance notice of plant closings and mass layoffs affecting 50 or more workers. Not all layoffs require WARN notice.
What benefits are available after a Charles River Laboratories layoff? ▼
Workers affected by a WARN-notified layoff may be eligible for unemployment insurance, COBRA health coverage continuation, job retraining through the Trade Adjustment Assistance program, and severance packages if offered by the employer. State workforce agencies often provide additional rapid response services.
How does Charles River Laboratories's layoff history compare to the industry? ▼
Charles River Laboratories has affected 67 workers across 5 WARN filings in the Professional & Technical Services sector. The federal WARN Act only captures layoffs affecting 50 or more workers, so actual workforce changes may be larger.
Data sourced from official state WARN-Act layoff registries. See our methodology for details. Retrieved and formatted by PlainLayoffs Editorial
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from state WARN Act filings. Consult a qualified professional before making decisions based on this data.
Download the data behind this page
The full PlainLayoffs employer roster, covering every recorded employer including Charles River Laboratories, is available as CSV. Underlying WARN Act filings are public records; see our methodology for the compilation method.
Every figure on PlainLayoffs is rendered directly from public WARN Act filings and state workforce agency records, no number is typed in by an editor. This employer's notice history is rendered directly from state WARN Act filings. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026. A WARN filing is a legally required notice, not a judgment of a company's management or financial health; rankings here reflect filed notice volume only.
| Publisher | PlainLayoffs |
| Sources | Public state WARN-Act layoff registries |